Respuesta :

Answer:

164 cm^2

Step-by-step explanation:

Total surface area = 2 * area of triangle + areas of the 3 rectangles

= 2 * 1/2 * 5 * 4 + 5 * 9 + 5 * 9 + 6 * 9

=  20 + 45 + 45 + 54

= 164 cm^2

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